用户输入和循环在程序中没有输出

Question

我已被任务创建一个C＃Windows表单应用程序，该应用程序包含一个循环，在其中将用户输入上限和下限和输出从10开始，并在上限之前结束。我的程序不会输出任何内容，我不确定怎么了。这是我拥有的：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Loops
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }
    private int lowerBounds, upperBounds, num;
    private void TextBoxUpperBounds_TextChanged(object sender, EventArgs e)
    {
        upperBounds = Convert.ToInt32(Console.ReadLine());
    }
    private void BtnOutputValues_Click(object sender, EventArgs e)
    {
        for (num = lowerBounds; num < upperBounds; num++)
        {
            if (num % 10 == 0)
            {
                MessageBox.Show(num.ToString());
            }
            else { }
        }
    }        
    private void TextBoxLowerBounds_TextChanged(object sender, EventArgs e)
    {
        lowerBounds = Convert.ToInt32(Console.ReadLine());
    }
}

}

Answer 1

您的代码仅输出10的倍数，该倍数低于上限。

使您的代码输出下限和上限之间的数字大于10，您应该使用以下循环：

for (num = lowerBounds; num < upperBounds; num++)
    {
        if (num >10 )
        {
            MessageBox.Show(num.ToString());
        }
        else { }
    }

Answer 2

atomsmasher是完全正确的。这是执行我需要执行的操作的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Loops
{
    public partial class Form1 : Form
    {
        public Form1()
        {
                InitializeComponent();
        }
        private int lowerBounds, upperBounds, num;
        private void TextBoxUpperBounds_TextChanged(object sender, EventArgs e)
        {
            upperBounds = Convert.ToInt32(textBoxUpperBounds.Text);
        }
        private void BtnOutputValues_Click(object sender, EventArgs e)
        {
            for (num = lowerBounds; num < upperBounds; num++)
            {
                if (num % 10 == 0)
                {
                    MessageBox.Show(num.ToString());
                }
                else { }
            }
        }        
        private void TextBoxLowerBounds_TextChanged(object sender, EventArgs e)
        {
            lowerBounds = Convert.ToInt32(textBoxLowerBounds.Text);
        }
    }
}